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Finding the Fourth Proportional to 288,660.94, 432,880.65 and 99,085.96

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Solution

The fourth proportional to 288,660.94, 432,880.65 and 99,085.96 is: 148,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,660.94 : 432,880.65 = 99,085.96 : x
  2. Step 2: Convert to fraction form
    288,660.94/432,880.65 = 99,085.96/x
  3. Step 3: Cross multiply
    288,660.94x = 432,880.65 × 99,085.96
  4. Step 4: Simplify right side
    288,660.94x = 42,892,394,770.67
  5. Step 5: Solve for x
    x = 42,892,394,770.67/288,660.94
  6. Step 6: Final answer
    x = 148,590.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.